7420-00-551-5225 ADDING AND SUBTRACTING MACHINE Index 7520-00-551-5227 SLIDE RULE

National Stock Number:
9540-00-551-5226

Federal Supply Class:
9540

National Item Identification Number:
005515226

Description:
BEAM,STRUCTURAL

Detail:
A STRUCTURAL SHAPE FABRICATED FROM A FERROUS OR NONFERROUS MATERIAL AND RESEMBLES THE FOLLOWING CROSS-SECTIONAL FORMS: FOR THE LETTER H, BOTH FLANGES OF THE H SECTION ARE EQUAL OR LONGER THAN THE WIDTH MEASURED ALONG THE AXIS OF THE WEB; FOR THE LETTER I, A 16 2/3 PERCENT SLOPE ON THE INSIDE FACE OF THE FERROUS TYPE FLANGE, EITHER ONE OR BOTH OF THE NONFERROUS TYPE FLANGES ARE SHORTER THAN THE LENGTH MEASURED ALONG THE AXIS OF THE WEB; FOR THE LETTERS T AND Z, ON NONFERROUS TYPE, THE WEB IS USUALLY AT RIGHT ANGLES TO THE FLANGES. LETTER H SECTION MAY HAVE A MAXIMUM OF 5 PERCENT SLOPE ON THE INSIDE FACE OF THE FLANGES.


Manufacturer Information:
23527501634ALUMINUM CO OF AMERICA
60-482929321TRANSTAR METALS CORP
6579727610INTERNATIONAL LIGHT METALS CORP SUB OF MARTIN MARIETTA CORP
AMS-QQ-A-200/150U583SAE INTERNATIONAL
AMS-QQ-A-200/1581343SOCIETY OF AUTOMOTIVE ENGINEERS INC
LS1474898897LOCKHEED MARTIN CORP
PA2805206012TRANSTAR METALS CORP
QQ-A-200/1581348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BASIC SHAPE STYLET SHAPE
FABRICATION METHODEXTRUDED
FILLET RADIUS WHERE TOP LEFT FLANGE JOINS WEB FLANGE/LEG0.125 INCHES NOMINAL
FILLET RADIUS WHERE TOP RIGHT FLANGE JOINS WEB FLANGE/LEG0.125 INCHES NOMINAL
FIRST TIP STYLESQUARE END
HEAT TREATMENTT-76 SOLUTION HEAT TREATED
LEFT SIDE TOP FLANGE DISTANCE TO CENTER OF BOTH FLANGES0.911 INCHES NOMINAL
LEFT SIDE TOP FLANGE THICKNESS0.063 INCHES NOMINAL
LEFT TOP INSIDE ANGLE81.7833 DEGREES MINIMUM AND 83.7833 DEGREES MAXIMUM
LEG THICKNESS0.063 INCHES NOMINAL
LENGTH10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM
MATERIALALUMINUM ALLOY AMS-QQ-A-200/15, ALLOY 7075
PROPRIETARY CHARACTERISTICSPACS
NONDEFINITIVE SPEC/STD DATAT76 TEMPER
OVERALL HEIGHT1.550 INCHES NOMINAL
RIGHT SIDE TOP FLANGE DISTANCE TO CENTER OF BOTH FLANGES1.239 INCHES NOMINAL
RIGHT SIDE TOP FLANGE THICKNESS0.063 INCHES NOMINAL
RIGHT TOP INSIDE ANGLE96.2167 DEGREES MINIMUM AND 98.2167 DEGREES MAXIMUM
SECOND TIP RELATIONSHIP TO FIRST TIPIDENTICAL
WEIGHT PER UNIT MEASURE0.284 POUNDS PER LINEAR FOOT
THIRD TIP RELATIONSHIP TO PRECEDING TIPSIDENTICAL W/FIRST TIP
TOP FLANGE WIDTH2.150 INCHES NOMINAL


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